Henscoqi Luxury U8 Smart Wrist Watch with Bluetooth for iPhone Samsung S4/Note2/Note3 Android Phone Smartphones(White) Altitude Meter,Passometer,Photograph, Barometer, Vibration Anti-lost alarm function: When cellphone left watch alarm automatically, after a certain distance to avoid lose the phones 1.48" Capacitive Touch Screen TFT LCD. Support hands-free calls, phone book Remote taking photo function:You can control your cellphone to take photo from your wrist. (only for android phone) Please note that this watch can work with any android phone, however only iphone supports the bluetooth function. Please note that the bluetooth signal can be communicated only upto 7 meters. In case, if the screen is not responsive, please charge the phone first and then try to open it.